Lamp-guard.



H. HUBBELL.

LAMP GUARD.

APPLIoATIoN rmzn 1:16.11. 1910.

989,013. Patented Apr. 11, 1911.

WITNESSES: /NVENTH A @Wma-f HARVEY HUBBELI, OF BRIDGEPORT, CONNECTICUT.

LAMP-GUARD.

Specification of Letters Patent.

Patented Apr. 11, 1911.

Application filed August 11, 1910. Serial No. 576,692.

To all 'whom it 'may concern:

Be it known that I, HARVEY HUBBELL, a citizen of the United States,residing at Bridgeport, county of Fairfield, State of Connecticut, haveinvented an Improvement in Lamp-Guards, of which the following is aspecification.

This invention has for its object to produce an incandescent lamp guardwhich shall be neat and attractive in appearance and in which the costof construction shall be reduced to the minimum.

With these and other objects in view I have devised a lamp guard madewholly from pieces of wire electrically welded together, all sheet metalor other extra parts being avoided with the exception of an attachlngscrew.

In the accompanying drawing forming a part of this speciiication, Figure1 is a plan View of my novel lamp guard as in use; Fig. 2 an elevation;Fig. 3 a detail view showing the attachment of the top rings to one ofthe longitudinal strips; and Fig. 4 is a detail view of the top of alamp guard showing a slightly variant form of the invention.

One of the important elements of novelty of the invention lies in thefact that sheet metal parts are wholly avoided and furthermore in thefact that soldering as a means of securing the parts together isavoided. It will of course be obvious that while the invention isadapted for use in connection with various styles of lamps, it isespecially applicable to guards for incandescent electric lamps, inwhich the requirements are simply for a cage or body to inclose andprotect the lamp and means for conveniently attaching the guard to andremoving it from a lamp socket.

In carrying out my invention I construct a guard of a central ring ofwire, indicated by 10, a bottom ring indicated by 11, two top ringsindicated by l2 and longitudinal strips 13 attached to the severalrings. The bottom ring is shown as provided with bends or offsetsindicated by 14, and the lower ends of the longitudinal strips arecurved about this ring at the bends forming eyes 15. The

longitudinal strips lie outside of the central and top rings and arepartially merged into and made integral with said rings by the processof electric welding. -I thus produce a cage or body of very neat andattractive appearance having a maximum of strength and at a minimum ofexpense. If preferred the longitudinal strips may be attached to thebottom ring also by the process of electric welding. The two top ringsare placed at just sufficient distance apart to adapt them to lie aboveand below the usual attaching rib formed at the lower end of electriclampsockets. The top rings are divided leaving openings as at 16 betweentwo of the longitudinal strips whereby they are rendered contractile.The two longitudinal strips contiguous to the openings are provided attheir upper ends with eyes 17,-

through which the attaching screw 18 passes, the head 19 of the screwbearing upon the outer face ot' one of the eyes and the other eye beingtapped, as in Figs. 1 and 2, for engagement by the screw, or ifpreferred, as in Fig. 4, the screw may pass freely through both eyes andthe guard be retained in place on a lamp socket by a nut 20 engaging thescrew and bearing against the outer face of the other eye. Theresiliency of the upper ring permits the guard to be readily slippedover the rib on a lamp socket when the screw is loosened. l/Vhen thescrew is tightened up, the upper rings lie above and below the rib onthe socket and retain the guard firmly and securely in place thereon.

Having thus described my invention I claim:

l. A lamp guard formed of wires integrally united and includingcontractile wire rings adapted to lie above and below the rib on a lampsocket, and means for contracting' said rings, whereby the guard may beclamped in position on a lamp socket.

2. A lamp guard formed of longitudinal and transverse wires integrallyunited and including contractile wire rings adapted to lie above andbelow the rib on a lamp socket, said rings having their ends attachedtolcontiguous longitudinal wires, and means for moving the lastmentioned longitudinal Wires togethei1l` to clamp said rings in posithelongitudinal strips With eyes, and an attion on a lamp socket. taehingscrew passing through the eyes. 10 3. A lamp guard comprisinglongitudinal In testimony whereof I affix my signature strips, two ofWhich are provided at their in presence of tWo Witnesses.

upper ends With eyes, VVrings; adapted to lie Y HARVEYHUBBELL. above andbelow the rib on a lamp socket Witnesses: and rigidly secured to thelongitudinal A. M. l/VoosTER, strips, said rings having openings betweenS. W. ATHER'TON.

Copies ofthis patent may be obtained for ve cents each, by addressingthe Commissioner of Patents` Washington, D. C. Y

